<template>
    <div class="app-container">
       <!-- 顶部 Header 区域 -->
       <mt-header fixed title="黑马程序员.Vue项目">
            <span slot="left" v-show="flag">
                <mt-button icon="back" @click="goback">返回</mt-button>
            </span>
       </mt-header>


       <!-- 中间 路由 的 router-view 区域 -->
       <transition>
            <router-view></router-view>        
       </transition>


       <!-- 底部的 Tabbar 区域 -->
       <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-llb" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-llb" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-llb" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart"><span class="mui-badge" id="badge">{{ $store.getters.getAllCount }}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-llb" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>

    </div>

</template>

<script type="text/javascript">
    

     export default{
        data(){
            return{
               flag: false
            }
        },
        created() {
            this.flag = this.$route.path === '/home' ? false : true
        },
        methods: {
            goback() {
                this.$router.go(-1)
            }
        },
        watch: {
            "$route.path": function(newVal) {
                if(newVal === '/home'){
                    this.flag = false
                } else {
                    this.flag = true
                }
            }
        }
    }
</script>
<style lang="scss" scoped>
    .mint-header{
        z-index: 99;
    }
    .app-container{
        padding-top: 40px;
        padding-bottom: 50px;
        overflow-x: hidden;
    }

    .v-enter{
        opacity: 0;
        transform: translateX(100%);
    }

    .v-leave-to{
        opacity: 0;
        transform: translateX(-100%);
        position: absolute;
    }

    .v-enter-active,
    .v-leave-active{
        transition: all 0.5s ease;
    }

    .mui-bar-tab .mui-tab-item-llb.mui-active {
        color: #007aff;
    }
    .mui-bar-tab .mui-tab-item-llb {
        display: table-cell;
        overflow: hidden;
        width: 1%;
        height: 50px;
        text-align: center;
        vertical-align: middle;
        white-space: nowrap;
        text-overflow: ellipsis;
        color: #929292;
    }
    .mui-bar-tab .mui-tab-item-llb .mui-icon {
        top: 3px;
        width: 24px;
        height: 24px;
        padding-top: 0;
        padding-bottom: 0;
    }
    .mui-bar-tab .mui-tab-item-llb .mui-icon~.mui-tab-label {
        font-size: 11px;
        display: block;
        overflow: hidden;
        text-overflow: ellipsis;
    }
</style>
